Andrea Williams
Nurse Practitioner โข Aurora, IL
1221 N Highland Ave
Aurora, IL 605061404
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Andrea Williams is listed in NPPES under Nurse Practitioner.
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NPI assigned on September 28, 2018; this date does not establish years in practice.
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Published CMS data list 908 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021. Published rows only; this is not a quality measure.
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Published Part B service records, 2021:
- 99213 โ Established patient outpatient office visit: 414 service units.
- 51798 โ Ultrasound measurement of bladder capacity after voiding: 195 service units.
- 51702 โ Simple insertion of temporary bladder tube: 123 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See all 9 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 396 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Tamsulosin Hcl โ 183 prescription fills, including refills.
- Finasteride โ 110 prescription fills, including refills.
- Oxybutynin Chloride โ 40 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 264 in 2019 to 908 in 2021.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019โ2021.
Practice Location & Contact Primary Location
1221 N Highland Ave
Aurora, IL 605061404
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $84,067 in 2021
The total amount Medicare approved for these services in 2021. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021.
Paid by Medicare
About $63,008 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021.
30-day fills
1,080 standardized 30-day fills in 2022
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$29,177 in 2022
The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022.
Open Payments general payments, program year 2025
All general payments: $223.23 across 4 records.
By nature of payment
- Food and Beverage: $223.23 across 4 records.
Reporting-company totals (3 largest of 4)
- Dexcom, Inc.: $162.41 across 1 record.
- Neurocrine BioSciences, Inc.: $22.62 across 1 record.
- Orthofix Medical, Inc.: $20.77 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2018
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Andrea Williams has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Andrea Williams as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Aurora and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Andrea Williams are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Andrea Williams are from 2022.
53 active clinicians are listed under Nurse Practitioner with a practice address in Aurora, IL (4,894 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Aurora
17% of these 53 clinicians have the CMS telehealth indicator.
62.3% of these 53 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 244% from 264 in 2019 to 908 in 2021.
- 2019: 264
- 2020: 494
- 2021: 908
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Medicare-allowed amount
Medicare-allowed amount increased 413% from $16,403 in 2019 to $84,067 in 2021.
- 2019: $16,403
- 2020: $26,780
- 2021: $84,067
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Paid by Medicare
Paid by Medicare increased 403% from $12,527 in 2019 to $63,008 in 2021.
- 2019: $12,527
- 2020: $17,943
- 2021: $63,008
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 383% from 82 in 2019 to 396 in 2022.
- 2019: 82
- 2020: 470
- 2021: 1,096
- 2022: 396
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30-day fills
30-day fills increased 349% from 241 in 2019 to 1,080 in 2022.
- 2019: 241
- 2020: 1,167
- 2021: 2,663
- 2022: 1,080
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Part D drug cost
Part D drug cost increased 1096% from $2,440 in 2019 to $29,177 in 2022.
- 2019: $2,440
- 2020: $21,678
- 2021: $86,892
- 2022: $29,177
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $326.88 in 2021 to $223.23 in 2025.
- 2021: $326.88
- 2022: $20.71
- 2023: $132.94
- 2024: $89.42
- 2025: $223.23
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $223.23.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $162.41 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $22.62 |
| Orthofix Medical, Inc. |
Food and Beverage
Cash or cash equivalent
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Physio-Stim | General | $20.77 |
| Teleflex LLC |
Food and Beverage
In-kind items and services
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BARRIGEL | General | $17.43 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ2020 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2019โ2021; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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414 | 365 | $153.00 | $81.83 |
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51798
Ultrasound measurement of bladder capacity after voiding
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195 | 169 | $68.00 | $11.24 |
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51702
Simple insertion of temporary bladder tube
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123 | 35 | $276.00 | $58.73 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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65 | 62 | $224.00 | $117.08 |
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J9202
Goserelin acetate implant, per 3.6 mg
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54 | 14 | $755.00 | $529.85 |
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96402
Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle
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18 | 14 | $121.00 | $29.87 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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14 | 14 | $341.00 | $152.09 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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13 | 13 | $236.00 | $101.99 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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12 | 12 | $107.00 | $46.60 |
Source: CMS Part B by Provider and Service, 2021; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 183 | 15,420 | $3,565.07 | 93 |
| Finasteride | Finasteride | 110 | 9,250 | $1,970.33 | 55 |
| Oxybutynin Chloride | Oxybutynin Chloride | 40 | 2,812 | $684.06 | 19 |
| Myrbetriq | Mirabegron | 19 | 1,380 | $20,753.39 | โ |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 18 | 1,620 | $373.48 | โ |
| Tolterodine Tartrate | Tolterodine Tartrate | 14 | 780 | $1,494.32 | โ |
| Doxazosin Mesylate | Doxazosin Mesylate | 12 | 1,080 | $336.52 | โ |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-11-06NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363LF0000X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20181205001909
IL
1759625551
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Registered Nurse, Master of Science, Family Nurse Practitioner
Social Worker - Clinical
Licensed Clinical Social Worker, Certified Alcohol and Drug Counselor
Nurse Practitioner
Advanced Practice Nurse
Pediatrics
Doctor of Medicine (M.D.)
Physical Therapist
Physical Therapist
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 28594 NETWORK PL, CHICAGO, IL 606731285 (Tel: 6308596800)
NPI status registered as active in NPPES database
Registered at 1221 N HIGHLAND AVE, AURORA, IL 605061404 (Tel: 6308596700)
Registered at 1221 N HIGHLAND AVE, AURORA, IL 605061404
Recorded as ANDREA WILLIAMS
Nurse Practitioner (license number reported to NPPES: IL 209.018280)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Aurora
- Erin Sinnaeve, APRN
- Jennifer Long
- Maria Arzadon-Mercado, RN, MS, FNP
- Jacqueline Szilage, APRN, BC
- Rovena Aliaj
- Danielle Valentino, NP
Mailing Address
28594 Network Pl
Chicago, IL 606731285
Phone: 6308596800